import java.util.Scanner;
public class Demo1 {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int y = input.nextInt();
        if((y%4==0 && y%100!=0) || (y%400==0)){
            System.out.println("yes");
        }else{
            System.out.println("no");
        }
    }
}
